Edwin henry story



(No Model.) 2 Sheets-Sheet 1.

I E. H. STORY.

METAL ROLLING MACHINERY.

No. 494,904 Patented Apr. 4, 1893.

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E. H. STORY. METAL ROLLING MACHINERY.

No. 494,904. Patented Apr. 4, 1893.

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I with a square eye which is planed or finished UNITED STATES EDWINHENRY STORY,

P ATENT rricn.

OF EGCLES, ENGLAND.

METAL-ROLLING MACHINERY.

SPECIFICATION forming part of Letters Patent No. 494,904, dated April 4,1893,

Application filed September 27, 1892 To all whom it may concern..-

Be it kn own that I, EDWIN HENRY STORY, engineer, a subject of the Queenof Great Britain and Ireland, residing at Oakleigh, Ellesmere Park,Eccles, near Manchester, in the county of Lancaster, England, haveinvented certain new and useful Improvements in Metal-Rolling Machinery,of which the following is a specification.

My invention relates principally to the rolling of hollow shafts andtubes and has for its main object to facilitate the changing of therolls. A series of rolls are mounted in each of two carriers which arethemselves mounted within the housings each carrier being arranged toturn upon an axis and having its carried rolls fitted to revolve uponaxes which are concentric with the axis of the carrier. The rolls arearranged in pairs one roll of each pair being in one carrier and theother roll in the other carrier. One pair can be quickly changed foranother by rotating the two carriers to the required extent. The rollsare driven by means of shafts which are mounted to slide into and out ofengagement with the rolls which are formed with square or polygonal eyesor with suitably shaped eyes or trunnions to engage with the shafts.

In order that the nature of my invention and the manner in which Ipropose to carry the same into practical efiect may be clearlyunderstood I will describe my invention with reference to theaccompanying drawings.

In the drawings :-Figure 1 represents a side elevation of a millsuitable for rolling tubes or hollow shafts. Fig. 2 is a front elevationof the same. Fig. 3 is a plan of the same. Fig. 4 is a horizontalsection on the line B B in Fig. 2, ordinary parts, not necessary to thesufficient illustration, being left out in the drawings.

In the said figures A A are the roll carriers, 5 b are the housings, andc c are rams which withdraw and push forward the roll shafts. Each rollcarrier consists'of aframe provided with seatings for sixrolls aa. andcarried by a central shaft cl which is mounted to revolve in bearings,the bearings for the upper carrier being formed in the upper parts ofthe housings b and for the lower carrier in the foundation casting 9.Each roll is formed Serial No. 447,047. (No model.)

so that a square shaft may slide truly in the eye. The two carriers areconnected together by means of chain gearing f passing around chainwheels on the shafts (Z of the two carriers, so that when revolved, thetwo carriers revolve in unison. The lower carrier is intended to berevolved by means of bevel gear ing 9 connected with a side shaft goperated by hand or by power.

Any suitable means may be employed to connect together and to revolvethe two carriers.

The rolls in the two carriers are arranged in pairs so that any tworolls which arebrought into juxtaposition as in the cases of the lowestroll in A and the highest roll in A shall constitute a pair. By rotatingthe two carriers any one of the six pairs can be brought into workingposition. hen so brought into working position the axis of each roll isin line with the axes of two loose journals 7: h, which are mounted torevolve in the housings and are formed with square eyes correspendingwith the eyes in the rolls. These. journals appear more plainlyinFig. atwherein it 12. represent the two journals, the journal It being formedas a coupling to connect with the shaft '6 which is one of the ordinarycoupling shafts of the driving train and is connected with the ordinarycoupling gearing I. A square shaft 3' is fitted to slide in the eye ofthe journal h the end of the shaft entering and fitting into the eye ofthe journal h. It will be seen that the shaft passes through the eye inthe roll a which is the lowest roll in the upper carrier. The shaft 3'is coupled to the ram 0 which slides in the hydraulic ram cylinder c theconnection of the shaft with the ram permitting of the rotation of theshaft. By means of the hydraulic ram the shaft can be drawn entirely outof the eye in the roll so that the roll carrier can be revolved. Thereis a corresponding arrangement in connection with the rolls in the lowercarrier. When the rolls in a pair have been thus liberated by drawingout the two shafts by the simultaneous action of the two hydraulic ramsthe two carriers can be rotated until any two rolls constituting a pairare brought into working positions. The two shafts are then pushed inpassing into and through the eyes in the rolls and entering the eyes inthe jourbearings in the housings and the shaft serv-v ing to connecttogether the roll and the two journals. The two rolls in the pair arethen revolved by the ordinary train gearing and used as if housed in theordinary manner.

It will be understood that the rolls in the carriers have groovesvarying in size so that they can be used in succession the revolution ofthe carriers rendering it possible to quickly change the rolls in use.-The number of rolls which the carriers are adapted to hold may be variedand the eyes and the shaft might be hexagonal or be otherwise thansquare so long as the shaft was fitted to transfer motion to the rolls.'In some cases the rolls might be made longer and be turned with two ormore passes or grooves.

I claim as my invention- 1. The roll carriers A A mounted to revolveupon centers and each carrying a se ries of rolls 0; or at havinggrooves varying in size,for rolling metals combined with means forturning the roll carriers to bring a roll in one carrier into workingrelation with a roll in the other carrier substantially as set forth.

2. The rolls a a, the roll carriers A A the sliding shafts j j thejournals h h and the hydraulic rams co'in combination with housings tocarry the roll carriers and the journals and with means for revolvingthe roll carriers and with ordinary means for driving the rolls throughthe journals and shafts substantially as and for the purpose set forth.

3. Rolls for rolling metal mounted in revoluble carriers containing twoor more pairs In testimony whereof I have signed my name to thisspecification in the presence of two subscribing witnesses.

EDWIN HENRY STORY. Witnesses:

JOSHUA ENrwIsLE, RICHARD W. IBBERSON.

